Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS Louisville, KY

March 25, 20214 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Mar 25, 2021, 6:40 PM CDT for 4 counties in Kentucky. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 25, 2021, 6:40 PM CDT (23:40 UTC)
Expired
Mar 25, 2021, 7:15 PM CDT
In force
35 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Butler County, KY, Logan County, KY, Simpson County, KY, Warren County, KY

The radar

The Ft Campbell radar (KHPX), 55 km from the middle of the area, began a volume at 23:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 25, 3:48 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.7 hours before the alert went out and 84 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2021-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
60 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

278 
WUUS53 KLMK 252340
SVRLMK
KYC031-141-213-227-260015-
/O.NEW.KLMK.SV.W.0014.210325T2340Z-210326T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
640 PM CDT Thu Mar 25 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Eastern Logan County in south central Kentucky...
  Western Simpson County in south central Kentucky...
  South central Butler County in south central Kentucky...
  Southwestern Warren County in south central Kentucky...

* Until 715 PM CDT.

* At 640 PM CDT, a severe thunderstorm was located 9 miles north of
  Springfield, moving northeast at 65 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Bowling Green, Russellville, Crestmoor, Memphis Junction, Auburn,
  Adairville, Woodburn, Dennis, Rich Pond and Buffalo Fork.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Kentucky.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3708 8669 3695 8638 3665 8668 3665 8701
TIME...MOT...LOC 2340Z 215DEG 58KT 3663 8690 

HAIL...0.75IN
WIND...60MPH
 
$$

JML
2 follow-up statements
688 
WWUS53 KLMK 260002
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
702 PM CDT Thu Mar 25 2021

KYC031-141-213-260011-
/O.CAN.KLMK.SV.W.0014.000000T0000Z-210326T0015Z/
Logan KY-Simpson KY-Butler KY-
702 PM CDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LOGAN...WESTERN
SIMPSON AND SOUTH CENTRAL BUTLER COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CDT for south central
Kentucky.

LAT...LON 3683 8658 3698 8667 3706 8664 3695 8638
      3682 8651
TIME...MOT...LOC 0001Z 215DEG 58KT 3691 8666 

$$

KYC227-260015-
/O.CON.KLMK.SV.W.0014.000000T0000Z-210326T0015Z/
Warren KY-
702 PM CDT Thu Mar 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHWESTERN WARREN COUNTY...

At 701 PM CDT, a severe thunderstorm was located 9 miles west of
Memphis Junction, moving northeast at 65 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Bowling Green, Memphis Junction, Crestmoor, Woodburn, Browning, Blue
Level, Rich Pond, Rockfield and Petros.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Kentucky.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3683 8658 3698 8667 3706 8664 3695 8638
      3682 8651
TIME...MOT...LOC 0001Z 215DEG 58KT 3691 8666 

HAIL...0.75IN
WIND...60MPH
 
$$

JML
736 
WWUS53 KLMK 260011
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
711 PM CDT Thu Mar 25 2021

KYC227-260021-
/O.EXP.KLMK.SV.W.0014.000000T0000Z-210326T0015Z/
Warren KY-
711 PM CDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WARREN COUNTY
WILL EXPIRE AT 715 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will 
be allowed to expire.  However gusty winds are still possible later 
tonight.

A Tornado Watch remains in effect until 1100 PM CDT for south central
Kentucky.

LAT...LON 3683 8658 3698 8667 3706 8664 3695 8638
      3682 8651
TIME...MOT...LOC 0011Z 215DEG 58KT 3704 8655 

$$

JML

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 25, 2:55 AM CDTWind AdvisoryLMKAdair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more25 hr
Mar 25, 4:59 PM CDTSevere Thunderstorm WarningLMKAllen, Barren, Simpson, Warren46 min
Mar 25, 5:24 PM CDTSevere Thunderstorm WarningLMKBarren, Edmonson, Hart, Warren36 min
Mar 25, 5:51 PM CDTSevere Thunderstorm WarningLMKHardin, Larue, Nelson24 min
Mar 25, 6:13 PM CDTSpecial Weather StatementLMKSimpson, Warren32 min
Mar 25, 6:14 PM CDTSevere Thunderstorm WarningLMKBullitt, Hardin, Larue, Nelson, Spencer31 min
Mar 25, 6:20 PM CDTSpecial Weather StatementLMKButler25 min
Mar 25, 6:36 PM CDTSpecial Weather StatementLMKSimpson24 min
Mar 25, 6:38 PM CDTSevere Thunderstorm WarningLMKHenry, Oldham, Shelby37 min
Mar 25, 6:57 PM CDTSpecial Weather StatementLMKHardin33 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.